Yaskawa Sigma-5 User Manual: Design and Maintenance - Linear Motors - Manual (Page 10)

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„ Wiring
CAUTION
• Securely tighten the cable connector screws and securing mechanism.
If the connector screws and securing mechanism are not secure, they may loosen during operation.
• Use cables with a radius, heat resistance, and flexibility suitable for the system.
• If the SERVOPACK malfunctions, turn OFF the main circuit’s power supply of the SERVOPACK.
The continuous flow of a large current may cause fire.
• Use a noise filter to minimize the effects of electromagnetic damage.
Failure to observe this caution may result in electromagnetic damage to electronic devices used near the SER-
VOPACK.
• Do not connect a commercial power supply to the U, V, or W terminals for the linear servomotor
connection.
Failure to observe this caution may result in injury or fire.
• Securely connect the main circuit power supply terminal screws and linear servomotor connection
terminal screws.
Failure to observe this caution may result in fire.
• Do not bundle or run the main circuit cables together with the I/O signal cables or linear scale con-
nection cables in the same duct. Keep them separated by at least 30 cm.
Failure to do so may result in malfunction.
• Use shielded twisted-pair wires or multi-core shielded twisted-pair wires for I/O signal cables and
linear scale connection cables.
• The maximum cable length is 3 m for the I/O signals, 20 m for the linear servomotor main circuit, 20
m for the serial converter unit, 15 m for the linear scale, and 15 m for the hall sensor.
• Do not touch the power supply terminals while the charge indicator is ON after turning power OFF
because high voltage may still remain in the SERVOPACK.
Make sure the charge indicator is OFF first before starting wiring and inspection.
• Observe the following precautions when wiring main circuit terminals.
• Remove main circuit terminals from the SERVOPACK prior to wiring.
• Insert only one main circuit cable per opening in the main circuit terminals.
• Make sure that no part of the core wire comes into contact with (i.e., short-circuit) adjacent wires.
• Do not turn ON the power to the SERVOPACK until all wiring has been completed, including the
main circuit terminals.
• Do not connect the SERVOPACK for 200 V directly to a voltage of 400 V.
The SERVOPACK will be destroyed.
• Be sure to wire correctly and securely.
Failure to observe this caution may result in motor overrun, injury, or malfunction.
• Always use the specified power supply voltage.
An incorrect voltage may result in burning.
• Make sure that the polarity is correct.
Incorrect polarity may cause ruptures or damage.
• Take appropriate measures to ensure that the input power supply is supplied within the specified
voltage fluctuation range. Be particularly careful in places where the power supply is unstable.
An incorrect power supply may result in damage to the product.
• Install external breakers or other safety devices against short-circuiting in external wiring.
Failure to observe this caution may result in fire.
• Take appropriate and sufficient countermeasures for each form of potential interference when
installing systems in the following locations.
Failure to observe this caution may result in damage to the product.
• Locations subject to static electricity or other forms of noise
• Locations subject to strong electromagnetic fields and magnetic fields
• Locations subject to possible exposure to radioactivity
• Locations close to power supplies
• Wiring or inspection must be performed by a technical expert.
• Use a 24-VDC power supply with double insulation or reinforced insulation.